Zeolite SSZ-39
The present invention relates to new crystalline zeolite SSZ-39 prepared using a cyclic or polycyclic quaternary ammonium cation templating agent.
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Claims
1. A zeolite having a mole ratio greater than about 10 of an oxide of a first tetravalent element to an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table II.
2. A zeolite having a mole ratio greater than about 10 of an oxide selected from the group consisting of silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, boron oxide, titanium oxide, indium oxide, vanadium oxide and mixtures thereof, and having, after calcination, the X-ray diffraction lines of Table II.
3. A zeolite according to claim 2 wherein the oxides comprise silicon oxide and aluminum oxide.
4. A zeolite according to claim 1 wherein said zeolite is predominantly in the hydrogen form.
5. A zeolite according to claim 1 wherein said zeolite is substantially free of acidity.
6. A zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows:
- YO.sub.2 /W.sub.c O.sub.d 10-100
- M.sub.2/n /YO.sub.2 0.01-0.03
- Q/YO.sub.2 0.02-0.05
7. A zeolite according to claim 6 wherein W is aluminum and Y is silicon.
8. The zeolite according to claim 6 wherein Q has the following structure: ##STR14##
9. A method of preparing a crystalline material comprising an oxide of a first tetravalent element and an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table II, said method comprising contacting under crystallization conditions sources of said oxides and a templating agent comprising a cyclic or polycyclic quaternary ammonium cation.
10. The method according to claim 9 wherein the first tetravalent element is selected from the group consisting of silicon, germanium and combinations thereof.
11. The method according to claim 9 wherein the second tetravalent element, trivalent element or pentavalent element is selected from the group consisting of aluminum, gallium, iron, boron, titanium, indium, vanadium and combinations thereof.
12. The method according to claim 11 wherein the second tetravalent element or trivalent element is selected from the group consisting of aluminum, boron, titanium and combinations thereof.
13. The method according to claim 12 wherein the first tetravalent element is silicon.
14. The method according to claim 9 wherein the templating agent has the following structure:
15. A process for converting hydrocarbons comprising contacting a hydrocarbonaceous feed at hydrocarbon converting conditions with a catalyst comprising a zeolite having a mole ratio greater than about 10 of an oxide of a first tetravalent element to an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table II.
16. The process of claim 15 wherein the zeolite is predominantly in the hydrogen form.
17. The process of claim 15 wherein the zeolite is substantially free of acidity.
18. The process of claim 15 wherein the process is a hydrocracking process comprising contacting the catalyst with a hydrocarbon feedstock under hydrocracking conditions.
19. The process of claim 18 wherein the zeolite is predominantly in the hydrogen form.
20. The process of claim 15 wherein the process is a dewaxing process comprising contacting the catalyst with a hydrocarbon feedstock under dewaxing conditions.
21. The process of claim 20 wherein the zeolite is predominantly in the hydrogen form.
22. The process of claim 15 wherein the process is a process for preparing a lubricating oil which comprises: hydrocracking in a hydrocracking zone a hydrocarbonaceous feedstock to obtain an effluent comprising a hydrocracked oil; and
- catalytically dewaxing said effluent comprising hydrocracked oil at a temperature of at least about 400.degree. F. and at a pressure of from about 15 psig to about 3000 psig in the presence of added hydrogen gas with the catalyst.
23. The process of claim 22 wherein the zeolite is predominantly in the hydrogen form.
24. The process of claim 22 wherein the catalyst further comprises at least one Group VIII metal.
25. The process of claim 15 wherein the process is a catalytic cracking process comprising contacting a hydrocarbon feedstock in a reaction zone under catalytic cracking conditions in the absence of added hydrogen with the catalyst.
26. The process of claim 25 wherein the zeolite is predominantly in the hydrogen form.
27. The process of claim 25 wherein the catalyst additionally comprises a large pore crystalline cracking component.
28. The process of claim 15 wherein the process is a process for oligomerizing olefins comprising contacting an olefin feed under oligomerization conditions with the catalyst.
29. The process of claim 15 wherein the process is a process for isomerizing olefins comprising contacting an olefin feed under isomerization conditions with the catalyst.
30. The process of claim 29 wherein the olefin feed comprises at least one C.sub.4 -C.sub.6 normal olefin.
31. The process of claim 15 wherein the process is a process for the production of higher molecular weight hydrocarbons from lower molecular weight hydrocarbons comprising the steps of:
- (a) introducing into a reaction zone a lower molecular weight hydrocarbon-containing gas and contacting said gas in said zone under C.sub.2+ hydrocarbon synthesis conditions with the catalyst and a metal or metal compound capable of converting the lower molecular weight hydrocarbon to a higher molecular weight hydrocarbon; and
- (b) withdrawing from said reaction zone a higher molecular weight hydrocarbon-containing stream.
32. The process of claim 31 wherein the metal or metal compound comprises a lanthanide or actinide metal or metal compound.
33. The process of claim 31 wherein the lower molecular weight hydrocarbon is methane.
34. A process for converting lower alcohols and other oxygenated hydrocarbons comprising contacting said lower alcohol or other oxygenated hydrocarbon under conditions to produce liquid products with a catalyst comprising a zeolite having a mole ratio greater than about 10 of an oxide of a first tetravalent element to an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table II.
35. In a process for the reduction of oxides of nitrogen contained in a gas stream in the presence of oxygen wherein said process comprises contacting the gas stream with a zeolite, the improvement comprising using as the zeolite a zeolite having a mole ratio greater than about 10 of an oxide of a first tetravalent element to an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table II.
36. The process of claim 35 wherein said zeolite contains a metal or metal ions capable of catalyzing the reduction of the oxides of nitrogen.
37. The process of claim 36 wherein the metal is copper, cobalt or mixtures thereof.
38. The process of claim 36 wherein the gas stream is the exhaust stream of an internal combustion engine.
39. A process for the separation of nitrogen from a nitrogen-containing gas mixture comprising contacting the mixture with a composition comprising a zeolite having a mole ratio greater than about 10 of an oxide of a first tetravalent element to an oxide of a second tetravalent element which is different from said first tetravalent element, trivalent element, pentavalent element or mixture thereof and having, after calcination, the X-ray diffraction lines of Table II.
40. The process of claim 39 wherein the gas mixture contains methane.
| 5187132 | February 16, 1993 | Zones et al. |
| 5254514 | October 19, 1993 | Nakagawa |
| 5273736 | December 28, 1993 | Nakagawa |
| 5316753 | May 31, 1994 | Nakagawa |
| 5340563 | August 23, 1994 | Zones et al. |
| 5397560 | March 14, 1995 | Millar et al. |
| 5580540 | December 3, 1996 | Nakagawa |
| 5645812 | July 8, 1997 | Nakagawa |
| 5785947 | July 28, 1998 | Zones et al. |
| 95/09812 | April 1995 | WOX |
| 96/34827 | November 1996 | WOX |
Type: Grant
Filed: Dec 11, 1997
Date of Patent: Sep 28, 1999
Assignee: Chevron U.S.A. Inc. (San Francisco, CA)
Inventors: Stacey I. Zones (San Francisco, CA), Yumi Nakagawa (Oakland, CA), Susan T. Evans (Mountain View, CA), Gregory S. Lee (San Ramon, CA)
Primary Examiner: Mark L. Bell
Assistant Examiner: David Sample
Attorney: Richard J. Sheridan
Application Number: 8/988,723
International Classification: C01B 3906; C01B 3912; C01B 3948;
